What .22 Rifle to Buy?

Little Cove 2 needs his own .22 for squirrels & plinking and such. I am leaning Ruger 10/22 because you can pretty much trick it out any way you want. Any other suggestions? I have a T-Bolt for myself, but he wants his own now. He'll be 11 in Sep.

Well, dad may need to make sure it's "sighted in right" from time to time, but it will be his rig.

I thought about Henry, but I am really leaning towards a semi-auto since I already have a bolt action. He will be shooting deer with my old Marlin turty-turty this year, so we've got lever action covered too.